Seiko Cal. 5660 - 257

This Automatic model from 1983 features a 37mm PVD Black case. Powered by the 5660 caliber with 34j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-355c93ee9355]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1983

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