Seiko Cal. 4491 - 936

This Hand-Winding model from 1979 features a 36mm Two-Tone case. Powered by the 4491 caliber with 18j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-9b3c79d78579]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1979

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