Seiko Cal. 4437 - 403

Seiko 4437-403

The Seiko 4437-403 represents an important milestone in Seiko's 1993 lineup. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-4d4afeaaffbd]

Also known as: Sumo, World Timer

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
14.4mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
40m
Dial Color
Navy
Jewels
27j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1993

Related Models

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