Seiko Cal. 6657 - 106

This Automatic model from 1975 features a 34mm Gold-Plated case. Powered by the 6657 caliber with 28j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-9265df718d59]

Also known as: Rally, Crown

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1975

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