Seiko Cal. 4538 - 373

Seiko 4538-373

The 4538-373 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4538 caliber with 32j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-3b359e6025a2]

Also known as: Sumo, Pogue

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
43mm
Case Thickness
15.9mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
30m
Dial Color
White
Jewels
32j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1989

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