Seiko Cal. 4443 - 421

The 4443-421 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4443 caliber with 33j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-a0f58e1c4a25]

Also known as: Flighty

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1974

Related Models

• Seiko 5253-720
• Seiko 6111-577
• Seiko 6612-957
• Seiko 4529-986
• Seiko 4529-784
• Seiko 5296-505
• Seiko 3880-280
• Seiko 6146-490
• Seiko 7054-141
• Seiko 5284-978
• Seiko 5225-359
• Seiko 7089-370