Seiko Cal. 4539 - 769

Seiko 4539-769

The 4539-769 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4539 caliber with 18j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-f4318721b84a]

Also known as: Helmet

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
13.7mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
160m
Dial Color
Champagne
Jewels
18j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1999

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seikata-wm-f4318721b84a