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Seiko Prospex Sea

Seiko Prospex Sea

AutomaticSteel

Ref. SLA025J1

Collection: ProspexCase size: 44.8mmMovement: 8L55

The Seiko Prospex Sea, reference SLA025J1, is a dive watch with a 44.8 mm steel case. This is a limited edition of 1500 pieces. The case measures 15.7 mm thick, with a water-resistance rating of 300 metres. Self-winding calibre 8L55 contains 37 jewels and has a power reserve of approximately 55 hours. The dial has a date display; the watch has a silicone strap. The dial has LumiBrite on the hands and indices. Movement accuracy is plus 15 to minus 10 seconds per day; the case has a screw-down crown. A curved sapphire crystal with an anti-reflective coating on the inner surface covers the dial.

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Last updated 9 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

GENERAL

Gender

Men

Limited Edition

1,500 pieces

CASE

Diameter

44.8mm

Thickness

15.7mm

Lug Width

19mm

Case Material

Steel

Water Resistance

300m

Crystal

Sapphire Crystal

MOVEMENT

Movement Type

Automatic

Caliber

8L55

Power Reserve

55h

Frequency

36,000 vph (5 Hz)

Jewels

37 jewels

BRACELET/STRAP

Bracelet/Strap

Silicon

FEATURES & COMPLICATIONS

DateLimited EditionLuminous handsLuminous indicesRotating BezelScrew-Down Crown

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