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Seiko Prospex Sea

Seiko Prospex Sea

Automatic

Ref. SLA029J1

Collection: ProspexCase size: 52.4mmMovement: 8L35

The Seiko Prospex Sea, reference SLA029J1, is a dive watch with a 52.4 mm case. The case measures 17.2 mm thick, with a water-resistance rating of 1000 metres. Self-winding calibre 8L35 contains 26 jewels and has a power reserve of approximately 50 hours. The watch has a sapphire crystal with an anti-reflective coating on the inner surface. The dial has a date display; the watch has a silicone strap. LumiBrite is applied to the hands and indices; movement accuracy is plus 15 to minus 10 seconds per day. A screw-down crown is part of the case; the case has a hard coating. This watch has a unidirectional rotating bezel.

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Last updated 9 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

GENERAL

Gender

Men

CASE

Diameter

52.4mm

Thickness

17.2mm

Lug Width

22mm

Water Resistance

1000m

Crystal

Sapphire Crystal

MOVEMENT

Movement Type

Automatic

Caliber

8L35

Power Reserve

50h

Frequency

28,800 vph (4 Hz)

Jewels

26 jewels

BRACELET/STRAP

Bracelet/Strap

Silicon

FEATURES & COMPLICATIONS

DateLuminous handsLuminous indicesRotating BezelScrew-Down Crown

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