Seiko Cal. 4548 - 337

Seiko 4548-337

The 4548-337 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4548 caliber with 29j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-e1329a5924c4]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
11.2mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
90m
Dial Color
Cream
Jewels
29j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1983

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