Seiko Cal. 6663 - 346

The Seiko 6663-346 represents an important milestone in Seiko's 1966 lineup. Powered by the 6663 caliber with 27j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-ef3ab9fd93dc]

Also known as: Bellmatic, Navigator

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1966

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