Seiko Cal. 4491 - 936

The Seiko 4491-936 represents an important milestone in Seiko's 1991 lineup. It features a Navy dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-301d4f77ef22]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1991

Related Models

• Seiko 3878-482
• Seiko 6646-976
• Seiko 4525-221
• Seiko 4520-645
• Seiko 0711-366
• Seiko 6680-795
• Seiko 6374-543
• Seiko 5299-448
• Seiko 5666-546
• Seiko 6330-433
• Seiko 3818-672
• Seiko 5634-830