Seiko Cal. 4437 - 198

Seiko 4437-198

The Seiko 4437-198 represents an important milestone in Seiko's 1982 lineup. Powered by the 4437 caliber with 32j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-e40dd1ba9e45]

Also known as: UFO, Navigator

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
8.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
160m
Dial Color
Black
Jewels
32j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1982

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