Seiko Cal. 4437 - 971

Seiko 4437-971

The 4437-971 is a sought-after Hand-Winding piece from Seiko's golden era. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-645ea2fe8ed8]

Also known as: Navigator, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
15.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
130m
Dial Color
Silver
Jewels
32j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1981

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seikata-wm-645ea2fe8ed8