Seiko Cal. 3866 - 688

Seiko 3866-688

The 3866-688 is a sought-after Solar piece from Seiko's golden era. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-c3f55d6b6d68]

Also known as: Bullhead

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
14.4mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Burgundy
Jewels
20j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1968

Related Models

seikata-wm-c3f55d6b6d68