Seiko Cal. 6685 - 137

The 6685-137 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6685 caliber with 20j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-75eafa798525]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1988

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