Seiko Cal. 7057 - 639

This Hand-Winding model from 1978 features a 45mm Two-Tone case. Powered by the 7057 caliber with 18j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-42adfa4dd31e]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Burgundy

Jewels

18j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1978

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