Seiko Cal. 5648 - 373

Seiko 5648-373

The 5648-373 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5648 caliber with 30j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-0864eaf7461d]

Also known as: UFO, Arnie

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
39mm
Case Thickness
8.3mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Blue Sunburst
Jewels
30j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1998

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