Seiko Cal. 4431 - 930

The 4431-930 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4431 caliber with 28j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-2aba452b5b27]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1973

Related Models

• Seiko 6137-895
• Seiko 6329-210
• Seiko 3842-305
• Seiko 6273-690
• Seiko 7040-491
• Seiko 5246-761
• Seiko 3865-357
• Seiko 6122-688
• Seiko 0766-124
• Seiko 6275-324
• Seiko 5659-504
• Seiko 4519-289