Seiko Cal. 3811 - 810

This Automatic model from 1967 features a 36mm PVD Black case. Powered by the 3811 caliber with 35j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-4b7fde5e951d]

Also known as: Sumo, Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1967

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