Seiko Cal. 5638 - 553

This Spring Drive model from 1993 features a 37mm Stainless Steel case. Powered by the 5638 caliber with 17j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-6e1364a1ec3a]

Also known as: Turtle, Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1993

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