Seiko Cal. 6689 - 506

The Seiko 6689-506 represents an important milestone in Seiko's 1974 lineup. It features a Navy dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-3c634f0c43a4]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1974

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