Seiko Cal. 4491 - 423

The Seiko 4491-423 represents an important milestone in Seiko's 1972 lineup. It features a Navy dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-97eaaeec2203]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1972

Related Models

• Seiko 6618-474
• Seiko 6199-397
• Seiko 6194-721
• Seiko 6161-360
• Seiko 6389-105
• Seiko 7133-114
• Seiko 7058-229
• Seiko 0772-557
• Seiko 6123-583
• Seiko 4495-871
• Seiko 3829-952
• Seiko 4499-755