Seiko Cal. 4425 - 943

The 4425-943 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4425 caliber with 22j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-fc4c8712bb8b]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Champagne

Jewels

22j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1970

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