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Seiko sea

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Seiko prospex samurai save the - seiko,

Seiko prospex samurai save the - seiko,

£312.70 · Buy It Now

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Poseidon men black tuna - black, 'tuna'

Poseidon men black tuna - black, 'tuna'

£198.29 · Buy It Now

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Seiko 7c43 6a00 - 7c43-6a00, exc+5

Seiko 7c43 6a00 - 7c43-6a00, exc+5

£289.27 · Buy It Now

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Seiko sea horse - seiko,

Seiko sea horse - seiko,

£286.70 · Buy It Now

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Seiko prospex 1965 heritage - prospex,

Seiko prospex 1965 heritage - prospex,

£832.90 · Buy It Now

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Seiko spb545j1 prospex save - prospex, 'save

Seiko spb545j1 prospex save - prospex, 'save

£748.00 · Buy It Now

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Seiko sea lion m77 - lion,

Seiko sea lion m77 - lion,

£135.59 · Buy It Now

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Seiko prospex limited - seiko,

Seiko prospex limited - seiko,

£481.00 · Buy It Now

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Steeldive sd1975c tuna - steeldive,

Steeldive sd1975c tuna - steeldive,

£125.50 · Buy It Now

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San martin sn039 retro - retro, diver

San martin sn039 retro - retro, diver

£199.98 · Buy It Now

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Seiko prospex save the ocean - seiko,

Seiko prospex save the ocean - seiko,

£361.58 · Buy It Now

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Exc seiko diver 6458 600a - seiko, 6458-600a

Exc seiko diver 6458 600a - seiko, 6458-600a

£225.98 · Buy It Now

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Seiko men prospex speedtimer - seiko,

Seiko men prospex speedtimer - seiko,

£406.78 · Buy It Now

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Poseidon blue sea dweller - blue, 'sea

Poseidon blue sea dweller - blue, 'sea

£198.29 · Buy It Now

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Poseidon sea dweller watch - sea,

Poseidon sea dweller watch - sea,

£285.00 · Buy It Now

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Seiko automatic sea - automatic, green

Seiko automatic sea - automatic, green

£112.99 · Buy It Now

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Seiko prospex srpc93 samurai - seiko,

Seiko prospex srpc93 samurai - seiko,

£316.38 · Buy It Now

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Vintage seiko automatic - vintage, 7009

Vintage seiko automatic - vintage, 7009

£112.99 · Buy It Now

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Seiko sea urchin watch - seiko,

Seiko sea urchin watch - seiko,

£150.00 · Buy It Now

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Seiko snzf17j1 sea - sea, urchin

Seiko snzf17j1 sea - sea, urchin

£187.90 · Buy It Now

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Seiko 2a22 0170 orange - seiko,

Seiko 2a22 0170 orange - seiko,

£314.81 · Buy It Now

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Vintage seiko automatic 7009 - vintage,

Vintage seiko automatic 7009 - vintage,

£112.99 · Buy It Now

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Seiko sea horse - horse, manual

Seiko sea horse - horse, manual

£155.66 · Buy It Now

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Seiko prospex turtle save the - seiko,

Seiko prospex turtle save the - seiko,

£311.66 · Buy It Now

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Seiko 4r36 01j0 - seiko,

Seiko 4r36 01j0 - seiko,

£1401.13 · Buy It Now

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Seiko sports orange - orange, boy

Seiko sports orange - orange, boy

£322.12 · Buy It Now

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Rare seiko white - rare,

Rare seiko white - rare,

£445.11 · Buy It Now

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Seiko prospex sbdc157 - seiko,

Seiko prospex sbdc157 - seiko,

£1112.99 · Buy It Now

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Poseidon luxury sea dweller - sea,

Poseidon luxury sea dweller - sea,

£199.95 · Buy It Now

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Seiko sports snzf17k1 sea - snzf17k1,

Seiko sports snzf17k1 sea - snzf17k1,

£299.00 · Buy It Now

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Seiko silver wave 7546 7040 - wave, 7546-7040

Seiko silver wave 7546 7040 - wave, 7546-7040

£229.02 · Buy It Now

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Seiko sports sea - 5,

Seiko sports sea - 5,

£179.99 · Buy It Now

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Seiko weekdater sea lion - weekdater, "sea

Seiko weekdater sea lion - weekdater, "sea

£119.99 · Buy It Now

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Seiko prospex save the - save,

Seiko prospex save the - save,

£300.00 · Buy It Now

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Seiko save the ocean - save,

Seiko save the ocean - save,

£312.70 · Buy It Now

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1964 seiko sportsman - seiko, horse

1964 seiko sportsman - seiko, horse

£199.99 · Buy It Now

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Seiko save the ocean antarctic - seiko,

Seiko save the ocean antarctic - seiko,

£320.00 · Buy It Now

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Vintage seiko 7s36 03c0 sea - seiko,

Vintage seiko 7s36 03c0 sea - seiko,

£140.00 · Buy It Now

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300m automatic black tuna - automatic,

300m automatic black tuna - automatic,

£199.95 · Buy It Now

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Seiko prospex 1968 - seiko,

Seiko prospex 1968 - seiko,

£695.00 · Buy It Now

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Seiko prospex men watch - prospex, men's

Seiko prospex men watch - prospex, men's

£440.20 · Buy It Now

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Seiko prospex sea solar - prospex, quartz

Seiko prospex sea solar - prospex, quartz

£339.99 · Buy It Now

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Grand seiko sbgh311 unkai sea - seiko,

Grand seiko sbgh311 unkai sea - seiko,

£4286.70 · Buy It Now

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Seiko nh36 stealth - seiko,

Seiko nh36 stealth - seiko,

£187.90 · Buy It Now

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Sea knight sk01 - sea,

Sea knight sk01 - sea,

£156.00 · Buy It Now

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Vintage seiko sea horse mens - sea,

Vintage seiko sea horse mens - sea,

£169.18 · Buy It Now

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Seiko prospex save the ocean - save,

Seiko prospex save the ocean - save,

£400.00 · Buy It Now

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Seiko sports sea - seiko,

Seiko sports sea - seiko,

£167.09 · Buy It Now

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Grand seiko sbgh311 unkai - unkai, sea

Grand seiko sbgh311 unkai - unkai, sea

£4586.70 · Buy It Now

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Seiko prospex spb545j1 rrp - spb545j1, "rrp

Seiko prospex spb545j1 rrp - spb545j1, "rrp

£850.00 · Buy It Now

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2025 grand seiko heritage sea - 2025,

2025 grand seiko heritage sea - 2025,

£4750.00 · Buy It Now

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Seiko prospex sea samurai - sea,

Seiko prospex sea samurai - sea,

£330.70 · Buy It Now

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Seiko prospex save the ocean - seiko,

Seiko prospex save the ocean - seiko,

£414.70 · Buy It Now

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Seiko prospex save the ocean - the,

Seiko prospex save the ocean - the,

£403.48 · Buy It Now

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Seiko sea lion - sea, watch

Seiko sea lion - sea, watch

£176.46 · Buy It Now

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Seiko prospex save - seiko, ocean

Seiko prospex save - seiko, ocean

£440.20 · Buy It Now

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Seiko sea lion 1965 - seiko,

Seiko sea lion 1965 - seiko,

£89.99 · Buy It Now

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Seiko automatic mens watch - seiko,

Seiko automatic mens watch - seiko,

£229.99 · Buy It Now

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Poseidon 43mm blue sea - blue, 'sea

Poseidon 43mm blue sea - blue, 'sea

£199.95 · Buy It Now

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Seiko watch 6619 8020 auto - seiko, 6619-8020

Seiko watch 6619 8020 auto - seiko, 6619-8020

£182.70 · Buy It Now

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Seiko automatic mens watch - automatic,

Seiko automatic mens watch - automatic,

£229.99 · Buy It Now

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Seiko sport automatic mm - 5, 46

Seiko sport automatic mm - 5, 46

£120.30 · Buy It Now

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Seiko skx781 monster - seiko,

Seiko skx781 monster - seiko,

£338.20 · Buy It Now

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Vintage 1965 japan - seiko, sea

Vintage 1965 japan - seiko, sea

£241.93 · Buy It Now

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Vintage seiko sea - seiko,

Vintage seiko sea - seiko,

£47.50 · Buy It Now

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Seiko skx033 pepsi 7s26 - skx033, 7s26-0040

Seiko skx033 pepsi 7s26 - skx033, 7s26-0040

£155.66 · Buy It Now

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Seiko vintage sea horse - vintage,

Seiko vintage sea horse - vintage,

£89.10 · Buy It Now

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Seiko prospex sfk003j1 sea - sfk003j1,

Seiko prospex sfk003j1 sea - sfk003j1,

£398.49 · Buy It Now

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Mens seiko jewels - mens,

Mens seiko jewels - mens,

£250.30 · Buy It Now

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Seiko sports dark - sports, blue

Seiko sports dark - sports, blue

£169.00 · Buy It Now

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Vintage nos seiko sea - nos,

Vintage nos seiko sea - nos,

£414.70 · Buy It Now

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Seiko prospex spb297 divers - spb297,

Seiko prospex spb297 divers - spb297,

£593.20 · Buy It Now

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Grand seiko sbgh311 unkai - grand,

Grand seiko sbgh311 unkai - grand,

£4500.00 · Buy It Now

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Seiko pokemon special model - seiko,

Seiko pokemon special model - seiko,

£1637.68 · Buy It Now

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Seiko smy117p1 kinetic 5mm - smy117p1, 38.5mm

Seiko smy117p1 kinetic 5mm - smy117p1, 38.5mm

£177.49 · Buy It Now

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Seiko 7548 700c orange 150m - 7548-700c,

Seiko 7548 700c orange 150m - 7548-700c,

£429.00 · Buy It Now

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Seiko men deep - seiko, men's

Seiko men deep - seiko, men's

£179.00 · Buy It Now

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Seiko skx781 monster - seiko,

Seiko skx781 monster - seiko,

£276.30 · Buy It Now

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Sinclair watches titanium 36mm - sinclair,

Sinclair watches titanium 36mm - sinclair,

£64.95 · Buy It Now

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Seiko prospex sea 1965 - seiko,

Seiko prospex sea 1965 - seiko,

£824.80 · Buy It Now

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Seiko prospex spb545j1 - prospex,

Seiko prospex spb545j1 - prospex,

£771.70 · Buy It Now

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Seiko prospex king - seiko,

Seiko prospex king - seiko,

£375.89 · Buy It Now

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New poseidon blue sea - poseidon, 'sea

New poseidon blue sea - poseidon, 'sea

£230.00 · Buy It Now

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Seiko sports sea - seiko, urchin

Seiko sports sea - seiko, urchin

£260.70 · Buy It Now

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2026 new seiko quartz watch - new, 5

2026 new seiko quartz watch - new, 5

£32.66 · Buy It Now

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Seiko sea horse gold - horse,

Seiko sea horse gold - horse,

£125.50 · Buy It Now

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Seiko diver watch 7002 - seiko,

Seiko diver watch 7002 - seiko,

£179.00 · Buy It Now

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Seiko prospex save the - prospex,

Seiko prospex save the - prospex,

£618.70 · Buy It Now

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Mint seiko orange monster - [n,

Mint seiko orange monster - [n,

£274.80 · Buy It Now

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Seiko sea lion m880 - seiko,

Seiko sea lion m880 - seiko,

£110.00 · Buy It Now

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Seiko prospex save the - prospex,

Seiko prospex save the - prospex,

£317.80 · Buy It Now

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Seiko skx171 7s26 7020 srp - seiko,

Seiko skx171 7s26 7020 srp - seiko,

£491.20 · Buy It Now

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Seiko skx781 7s26 0350 orange - skx781,

Seiko skx781 7s26 0350 orange - skx781,

£272.98 · Buy It Now

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Rare seiko sea horse seahorse - rare,

Rare seiko sea horse seahorse - rare,

£246.64 · Buy It Now

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Luxury men black - men’s, divers

Luxury men black - men’s, divers

£198.29 · Buy It Now

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Heavy black poseidon tuna - black,

Heavy black poseidon tuna - black,

£198.29 · Buy It Now

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📊96 listings · from £32.66 · avg £499.83
⚠️ These listings were last updated more than 15 days ago. Search for fresh listings

Browse 96 seiko sea listings currently in our index. Prices range from £32.66 to £4750, with an average of £499.83. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about seiko sea →

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Everything you need to know about seiko sea

Whether you are looking for a brand-new or second-hand seiko sea, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £32.66, while premium listings can reach £4750 — giving you a wide budget spread to work with. The average price of £499.83 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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