Seiko Cal. 5240 - 457

Seiko 5240-457

The 5240-457 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5240 caliber with 20j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-04d11a170c1e]

Also known as: Monster

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
8.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1973

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seikata-wm-04d11a170c1e