Seiko Cal. 6691 - 479

Seiko 6691-479

This Automatic model from 1974 features a 37mm PVD Black case. Powered by the 6691 caliber with 36j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-7d38e97ffee4]

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
37mm
Case Thickness
15.9mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
90m
Dial Color
Green
Jewels
36j
Frequency
28,800 bph
Power Reserve
67 hours
Year
1974

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