Seiko Cal. 3866 - 803

Seiko 3866-803

The 3866-803 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3866 caliber with 31j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-270e6a5074ea]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
39mm
Case Thickness
8.8mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Cream
Jewels
31j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1985

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