Seiko Cal. 7140 - 686

The Seiko 7140-686 represents an important milestone in Seiko's 1979 lineup. Powered by the 7140 caliber with 35j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-dba48f140815]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1979

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