Seiko Cal. 4437 - 890

The 4437-890 is a sought-after Solar piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-2af3e1d06a78]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1978

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