Seiko Cal. 6140 - 280

Seiko 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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