Seiko Cal. 4413 - 638

The Seiko 4413-638 represents an important milestone in Seiko's 1985 lineup. It features a Navy dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-fdbc152f3fb3]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1985

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