Seiko Cal. 6140 - 927

The Seiko 6140-927 represents an important milestone in Seiko's 1978 lineup. Powered by the 6140 caliber with 25j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-113ad54f59eb]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1978

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