Seiko Cal. 5663 - 415

Seiko 5663-415

This Automatic model from 1965 features a 37mm Two-Tone case. Powered by the 5663 caliber with 34j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-d6ad1d9ac941]

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
37mm
Case Thickness
10.5mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Cream
Jewels
34j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1965

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seikata-wm-d6ad1d9ac941