Seiko Cal. 4491 - 656

This Automatic model from 1997 features a 43mm Titanium case. Powered by the 4491 caliber with 17j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-104d5766eb13]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1997

Related Models

• Seiko 6193-651
• Seiko 4490-342
• Seiko 5631-278
• Seiko 7016-881
• Seiko 7119-669
• Seiko 7052-249
• Seiko 7054-114
• Seiko 5650-806
• Seiko 7142-734
• Seiko 0771-666
• Seiko 6184-300
• Seiko 5685-824