Seiko Cal. 6140 - 280

The Seiko 6140-280 represents an important milestone in Seiko's 1975 lineup. Powered by the 6140 caliber with 25j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-a60365819bae]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1975

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