Seiko Cal. 4491 - 571

The 4491-571 is a sought-after Automatic piece from Seiko's golden era. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-ce861bc2b704]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1981

Related Models

• Seiko 6282-148
• Seiko 6351-632
• Seiko 5658-538
• Seiko 7017-607
• Seiko 6392-416
• Seiko 5611-866
• Seiko 7083-304
• Seiko 4571-389
• Seiko 3874-661
• Seiko 3849-813
• Seiko 6670-754
• Seiko 6164-912