Seiko Cal. 6649 - 773

Seiko 6649-773

The 6649-773 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6649 caliber with 32j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-6b5f1a0ebe6c]

Also known as: Helmet

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
42mm
Case Thickness
8.7mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
110m
Dial Color
Champagne
Jewels
32j
Frequency
28,800 bph
Power Reserve
48 hours
Year
1976

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