Seiko Cal. 4485 - 442

The 4485-442 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4485 caliber with 17j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-09b1d8849af9]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1969

Related Models

• Seiko 4437-391
• Seiko 6673-795
• Seiko 6399-782
• Seiko 4560-718
• Seiko 0777-340
• Seiko 0738-254
• Seiko 7146-935
• Seiko 4437-456
• Seiko 5299-823
• Seiko 4516-729
• Seiko 3827-336
• Seiko 7047-218