Seiko Cal. 5630 - 492

This Spring Drive model from 1978 features a 35mm Titanium case. Powered by the 5630 caliber with 36j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-8c51f0885554]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1978

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