Seiko Cal. 3852 - 634

The 3852-634 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3852 caliber with 34j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-f64f2a00ff3e]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1987

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