Seiko Cal. 6690 - 463

The Seiko 6690-463 represents an important milestone in Seiko's 1981 lineup. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-de18d59ba5f3]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1981

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