Seiko Cal. 6140 - 667

The 6140-667 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6140 caliber with 31j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-2185b9967c2e]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1977

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