Seiko Cal. 4548 - 728

Seiko 4548-728

The 4548-728 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4548 caliber with 30j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-46fbb4e8a768]

Also known as: UFO, Navigator

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
13.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Silver
Jewels
30j
Frequency
36,000 bph
Power Reserve
39 hours
Year
1970

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seikata-wm-46fbb4e8a768