Seiko Cal. 4426 - 381

The 4426-381 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4426 caliber with 33j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-8bb4c0b83a20]

Also known as: Tuna, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1976

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