Seiko Cal. 4564 - 171

This Hand-Winding model from 1981 features a 37mm Two-Tone case. Powered by the 4564 caliber with 22j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-4dac8c0fd95b]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1981

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