Seiko Cal. 6140 - 931

The Seiko 6140-931 represents an important milestone in Seiko's 1977 lineup. It features a Black dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-d4890c98150f]

Also known as: Samurai, Shogun

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1977

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