Seiko Cal. 3864 - 850

The 3864-850 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3864 caliber with 28j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-e04b9f43c7eb]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1966

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