Seiko Cal. 4487 - 978

Seiko 4487-978

The 4487-978 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-1936063502f8]

Also known as: Crown

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
38mm
Case Thickness
15.4mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1965

Related Models

seikata-wm-1936063502f8