Seiko Cal. 5666 - 363

Seiko 5666-363

The 5666-363 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-eb841b13def4]

Also known as: Bullhead, UFO

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
43mm
Case Thickness
14.1mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
19j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1998

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