Seiko Cal. 6634 - 816

This Automatic model from 1969 features a 45mm Gold-Plated case. Powered by the 6634 caliber with 33j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-031b10ad079e]

Also known as: Helmet, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1969

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