Seiko Cal. 4423 - 283

The 4423-283 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4423 caliber with 21j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-de53ceb2cc17]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1976

Related Models

• Seiko 6267-885
• Seiko 4569-301
• Seiko 5656-357
• Seiko 6123-752
• Seiko 0762-919
• Seiko 6340-372
• Seiko 6377-197
• Seiko 4420-524
• Seiko 6251-443
• Seiko 7021-230
• Seiko 5282-938
• Seiko 0788-386