Seiko Cal. 4441 - 550

The Seiko 4441-550 represents an important milestone in Seiko's 1968 lineup. It features a White dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-f8f258537d75]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1968

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