Seiko Cal. 3866 - 513

The 3866-513 is a sought-after Solar piece from Seiko's golden era. Powered by the 3866 caliber with 28j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-8b7b40698930]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1971

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