Seiko Cal. 6633 - 337

Seiko 6633-337

The 6633-337 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6633 caliber with 22j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-caffbe985775]

Also known as: Monster, Navigator

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
41mm
Case Thickness
9.0mm
Lug Width
19mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Cream
Jewels
22j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1978

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