Seiko Cal. 6690 - 390

This Automatic model from 1998 features a 42mm Gold-Plated case. Powered by the 6690 caliber with 20j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-bf07a0ba6dd8]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1998

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