Seiko Cal. 4489 - 100

The Seiko 4489-100 represents an important milestone in Seiko's 1972 lineup. It features a Silver dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-f316a2f93ca6]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1972

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