Seiko Cal. 3840 - 908

The 3840-908 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3840 caliber with 31j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-978e175c3522]

Also known as: UFO, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1974

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