Seiko Cal. 4423 - 438

This Hand-Winding model from 1980 features a 41mm Gold-Plated case. Powered by the 4423 caliber with 23j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-fc3da1f0ff41]

Also known as: Samurai, Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1980

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