Seiko Cal. 4437 - 416

The 4437-416 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-1bcf16ad0a96]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

33j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1983

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