Seiko Cal. 5685 - 834

The 5685-834 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5685 caliber with 20j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-68763a985b13]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1970

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