Seiko Cal. 4546 - 188

This Hand-Winding model from 1977 features a 46mm Titanium case. Powered by the 4546 caliber with 26j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-6bf0f88498d1]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1977

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