Seiko Cal. 4427 - 130

This Hand-Winding model from 1971 features a 42mm Titanium case. Powered by the 4427 caliber with 25j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-7518114befdd]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1971

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