Seiko Cal. 6391 - 940

Released in 1973, the Cal. 6391 with design code 940 was part of Seiko's domestic market collection. It features a Cream dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-fe4992db5f07]

Also known as: Samurai, Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1973

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