Seiko Cal. 4442 - 231

The 4442-231 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4442 caliber with 35j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-6e08e38fce29]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1969

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