Seiko Cal. 4443 - 736

The 4443-736 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-575e645db827]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1989

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