Seiko Cal. 6690 - 452

The Seiko 6690-452 represents an important milestone in Seiko's 1978 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-983c56aeffcb]

Also known as: Bullhead, Rally

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1978

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