Seiko Cal. 6391 - 272

Seiko 6391-272

This Hand-Winding model from 1974 features a 41mm Two-Tone case. Powered by the 6391 caliber with 34j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-0ef2d6a72ffe]

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
41mm
Case Thickness
12.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Navy
Jewels
34j
Frequency
21,600 bph
Power Reserve
54 hours
Year
1974

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