Seiko Cal. 6635 - 110

The 6635-110 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d566ec8fe218]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1967

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