Seiko Cal. 6381 - 778

Seiko 6381-778

The Seiko 6381-778 represents an important milestone in Seiko's 1967 lineup. Powered by the 6381 caliber with 21j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-fe28ec82c186]

Also known as: Rally, Sportsmatic

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
12.9mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Champagne
Jewels
21j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1967

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