Seiko Cal. 6278 - 754

Seiko 6278-754

The Seiko 6278-754 represents an important milestone in Seiko's 1981 lineup. Powered by the 6278 caliber with 30j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-5105db25c26c]

Also known as: Tuna, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
35mm
Case Thickness
9.9mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Burgundy
Jewels
30j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1981

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seikata-wm-5105db25c26c