Seiko Cal. 6683 - 935

The Seiko 6683-935 represents an important milestone in Seiko's 1972 lineup. It features a Black dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-885ff187c66e]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1972

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