Seiko Cal. 4491 - 378

The Seiko 4491-378 represents an important milestone in Seiko's 1996 lineup. It features a Black dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-675b6790a1b2]

Also known as: Sportsmatic, Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1996

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