Seiko Cal. 6633 - 403

Seiko 6633-403

The Seiko 6633-403 represents an important milestone in Seiko's 1988 lineup. Powered by the 6633 caliber with 22j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-8612f0cd5ae5]

Also known as: Tuna, Bullhead

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
38mm
Case Thickness
9.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
130m
Dial Color
Burgundy
Jewels
22j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1988

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