Seiko Cal. 5634 - 735

This Spring Drive model from 1993 features a 42mm PVD Black case. Powered by the 5634 caliber with 31j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-28e0c9e4e044]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1993

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