Seiko Cal. 4598 - 905

This Hand-Winding model from 1970 features a 37mm Titanium case. Powered by the 4598 caliber with 31j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-fc35ab3ced44]

Also known as: Monster, Shogun

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1970

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