Seiko Cal. 3856 - 637

The 3856-637 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3856 caliber with 35j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-525cb5d6c98e]

Also known as: Crown, Arnie

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1985

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