Seiko Cal. 4581 - 325

This Spring Drive model from 1974 features a 41mm Titanium case. Powered by the 4581 caliber with 32j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-2f0ad50a1020]

Also known as: Pogue

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1974

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