Seiko Cal. 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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