Seiko Cal. 0721 - 139

Seiko 0721-139

This Automatic model from 1965 features a 38mm Two-Tone case. With its 20mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-f77fec4a19f6]

Also known as: Helmet, Arnie

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
38mm
Case Thickness
13.1mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Navy
Jewels
29j
Frequency
21,600 bph
Power Reserve
45 hours
Year
1965

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