Seiko Cal. 4487 - 821

Seiko 4487-821

The 4487-821 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-17163d48f07d]

Also known as: Navigator

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
42mm
Case Thickness
14.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
26j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1972

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