Seiko Cal. 5648 - 647

Seiko 5648-647

The 5648-647 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5648 caliber with 25j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-09e9a9210001]

Also known as: Arnie

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
9.6mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Champagne
Jewels
25j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1975

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seikata-wm-09e9a9210001