Seiko Cal. 4539 - 761

Seiko 4539-761

The 4539-761 is a sought-after Automatic piece from Seiko's golden era. With its 20mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-f55f062de198]

Also known as: Sumo, Arnie

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
41mm
Case Thickness
15.7mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Green
Jewels
33j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1971

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