Seiko Cal. 0730 - 223

Seiko 0730-223

The 0730-223 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0730 caliber with 28j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-825f73b72de7]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
34mm
Case Thickness
10.0mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
60m
Dial Color
White
Jewels
28j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1967

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