Seiko Cal. 4487 - 478

Seiko 4487-478

The 4487-478 is a sought-after Quartz piece from Seiko's golden era. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-b5ae8f7ebdc9]

Also known as: Helmet, Bellmatic

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
41mm
Case Thickness
8.4mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Black
Jewels
31j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1981

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