Seiko Cal. 4437 - 971

Seiko 4437-971

The 4437-971 is a sought-after Quartz piece from Seiko's golden era. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-46c621b7ecaf]

Also known as: Bullhead, Rally

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
15.2mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Silver
Jewels
19j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1990

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