Seiko Cal. 5637 - 157

The Seiko 5637-157 represents an important milestone in Seiko's 1988 lineup. Powered by the 5637 caliber with 32j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-a235bf4b6b21]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1988

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