Seiko Cal. 4433 - 640

Seiko 4433-640

The Seiko 4433-640 represents an important milestone in Seiko's 1998 lineup. Powered by the 4433 caliber with 19j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-82d616bcdc4b]

Also known as: Monster

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
15.7mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
80m
Dial Color
Green
Jewels
19j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1998

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