Seiko Cal. 5644 - 712

Seiko 5644-712

This Automatic model from 1966 features a 36mm Stainless Steel case. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-f53f56a03a80]

Also known as: Sumo, Shogun

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
9.4mm
Lug Width
21mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
White
Jewels
19j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1966

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