Seiko Cal. 6635 - 742

The 6635-742 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-39b15db8d0a1]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1973

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