Seiko Cal. 6648 - 973

Seiko 6648-973

The 6648-973 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6648 caliber with 31j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-f354aeb10d6a]

Also known as: Monster, Silverwave

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
43mm
Case Thickness
10.4mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
60m
Dial Color
Navy
Jewels
31j
Frequency
28,800 bph
Power Reserve
48 hours
Year
1973

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