Seiko Cal. 6630 - 748

Seiko 6630-748

This Automatic model from 1973 features a 39mm Titanium case. Powered by the 6630 caliber with 36j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-5ab6f2394dc2]

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
39mm
Case Thickness
13.8mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
White
Jewels
36j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1973

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seikata-wm-5ab6f2394dc2