Seiko Cal. 3839 - 818

The 3839-818 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3839 caliber with 36j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-931c7b00e8f1]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1970

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