Seiko Cal. 4420 - 394

This Hand-Winding model from 1978 features a 39mm Stainless Steel case. Powered by the 4420 caliber with 17j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-065a79f47e35]

Also known as: Goldfeather, World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1978

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