Seiko Cal. 5657 - 199

This Spring Drive model from 1975 features a 44mm PVD Black case. Powered by the 5657 caliber with 18j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-7bc39f76b068]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1975

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