Seiko Cal. 4537 - 509

Seiko 4537-509

The 4537-509 is a sought-after Solar piece from Seiko's golden era. Powered by the 4537 caliber with 18j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-d96f9c4d33ac]

Also known as: Silverwave

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
8.0mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Green
Jewels
18j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1985

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