Seiko Cal. 0720 - 511

Seiko 0720-511

The 0720-511 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-4c3580d08c23]

Also known as: Helmet

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
12.3mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
50m
Dial Color
Green
Jewels
35j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1973

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seikata-wm-4c3580d08c23