Seiko Cal. 6642 - 933

The Seiko 6642-933 represents an important milestone in Seiko's 1982 lineup. It features a Black dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-807088ee9e2a]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1982

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