Seiko Cal. 4427 - 666

This Hand-Winding model from 1979 features a 34mm Stainless Steel case. Powered by the 4427 caliber with 36j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-46de90c36994]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

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