Seiko Cal. 6663 - 387

Seiko 6663-387

The Seiko 6663-387 represents an important milestone in Seiko's 1999 lineup. Powered by the 6663 caliber with 33j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-18d6e923f55a]

Also known as: Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
40mm
Case Thickness
9.7mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
60m
Dial Color
Burgundy
Jewels
33j
Frequency
21,600 bph
Power Reserve
58 hours
Year
1999

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