Seiko Cal. 5663 - 971

Seiko 5663-971

This Hand-Winding model from 1978 features a 37mm Two-Tone case. Powered by the 5663 caliber with 32j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-653744810033]

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
37mm
Case Thickness
8.6mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
White
Jewels
32j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1978

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seikata-wm-653744810033