Seiko Cal. 7057 - 137

This Hand-Winding model from 1978 features a 42mm Hardlex-Coated Steel case. Powered by the 7057 caliber with 18j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-96f3879bd0e3]

Also known as: Crown, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1978

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