Seiko Cal. 0773 - 427

Seiko 0773-427

The 0773-427 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0773 caliber with 17j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-d451e13581e5]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
34mm
Case Thickness
10.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
150m
Dial Color
White
Jewels
17j
Frequency
21,600 bph
Power Reserve
38 hours
Year
1965

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