Seiko Cal. 5644 - 596

This Hand-Winding model from 1967 features a 44mm Hardlex-Coated Steel case. Powered by the 5644 caliber with 20j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-e00284b0f2fa]

Also known as: UFO, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1967

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