Seiko Cal. 4437 - 722

Seiko 4437-722

The Seiko 4437-722 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-de37260d2fa4]

Also known as: Monster, Crown

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
10.0mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Champagne
Jewels
33j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1971

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