Seiko Cal. 4539 - 441

Seiko 4539-441

The 4539-441 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-24da7a54019d]

Also known as: Bullhead, Silverwave

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
37mm
Case Thickness
13.3mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Black
Jewels
31j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1979

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seikata-wm-24da7a54019d