Seiko Cal. 4433 - 131

This Hand-Winding model from 1977 features a 44mm Two-Tone case. Powered by the 4433 caliber with 29j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-1525986b2d09]

Also known as: World Timer, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1977

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