Seiko Cal. 6663 - 336

The Seiko 6663-336 represents an important milestone in Seiko's 1986 lineup. Powered by the 6663 caliber with 23j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-888db505ad5e]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1986

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