Seiko Cal. 6278 - 509

Seiko 6278-509

This Hand-Winding model from 1971 features a 46mm Titanium case. Powered by the 6278 caliber with 31j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-3e8782aa67f4]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
46mm
Case Thickness
11.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Silver
Jewels
31j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1971

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