Seiko Cal. 6388 - 203

This Spring Drive model from 1970 features a 43mm Hardlex-Coated Steel case. Powered by the 6388 caliber with 19j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-931816482e4f]

Also known as: Turtle, Samurai

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1970

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