Seiko Cal. 4427 - 970

This Spring Drive model from 1980 features a 34mm Titanium case. Powered by the 4427 caliber with 31j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-c51159d4131d]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1980

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