Seiko Cal. 0757 - 398

This Automatic model from 1966 features a 40mm Two-Tone case. Powered by the 0757 caliber with 21j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-f70b763e3f48]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1966

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