Seiko Cal. 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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