Seiko Cal. 4539 - 641

Seiko 4539-641

The 4539-641 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4539 caliber with 30j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-a50f58f691f7]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
13.0mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
50m
Dial Color
White
Jewels
30j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1990

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