Seiko Cal. 4491 - 516

The Seiko 4491-516 represents an important milestone in Seiko's 1973 lineup. Powered by the 4491 caliber with 17j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-915fdd100104]

Also known as: Monster, Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1973

Related Models

• Seiko 5224-377
• Seiko 3818-343
• Seiko 4590-184
• Seiko 6673-856
• Seiko 5240-452
• Seiko 7081-405
• Seiko 6145-164
• Seiko 5649-359
• Seiko 6293-977
• Seiko 6111-173
• Seiko 3896-743
• Seiko 6358-898