Seiko Cal. 5660 - 381

This Quartz model from 1971 features a 35mm Hardlex-Coated Steel case. Powered by the 5660 caliber with 22j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-221799d34f55]

Also known as: Samurai, Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1971

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