Seiko Cal. 4430 - 712

This Spring Drive model from 1992 features a 34mm PVD Black case. Powered by the 4430 caliber with 34j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-a25f3bbbecca]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1992

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