Seiko Cal. 5615 - 388

Seiko 5615-388

This Hand-Winding model from 1965 features a 39mm Two-Tone case. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-7a87eb757d1a]

Also known as: Sumo, Arnie

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
39mm
Case Thickness
15.9mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
26j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1965

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