Seiko Cal. 5657 - 454

This Hand-Winding model from 1977 features a 40mm PVD Black case. Powered by the 5657 caliber with 19j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-a94e21d794dd]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

19j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1977

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