Seiko Cal. 4420 - 254

This Kinetic model from 1975 features a 36mm Titanium case. Powered by the 4420 caliber with 29j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-9eb5ed059ca1]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1975

Related Models

• Seiko 6371-156
• Seiko 5293-899
• Seiko 4454-519
• Seiko 3884-907
• Seiko 6115-388
• Seiko 0732-321
• Seiko 5657-784
• Seiko 4487-507
• Seiko 5213-446
• Seiko 4590-395
• Seiko 6673-634
• Seiko 6215-176