Seiko Cal. 6646 - 280

The Seiko 6646-280 represents an important milestone in Seiko's 1986 lineup. Powered by the 6646 caliber with 25j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-cb0e6095dbd2]

Also known as: Crown, Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1986

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