Seiko Cal. 6657 - 929

This Automatic model from 1970 features a 40mm Gold-Plated case. Powered by the 6657 caliber with 34j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-70a8327dc0c0]

Also known as: World Timer, Navigator

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1970

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