Seiko Cal. 4433 - 550

Seiko 4433-550

The 4433-550 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-f052aca03319]

Also known as: Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
46mm
Case Thickness
12.0mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Black
Jewels
28j
Frequency
28,800 bph
Power Reserve
53 hours
Year
1988

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