Seiko Cal. 3818 - 961

The 3818-961 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3818 caliber with 28j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-b32729216a0c]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1976

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