Seiko Cal. 4450 - 483

The Seiko 4450-483 represents an important milestone in Seiko's 1968 lineup. Powered by the 4450 caliber with 25j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-b04e31735ddf]

Also known as: Helmet, Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1968

Related Models

• Seiko 4443-444
• Seiko 5660-401
• Seiko 3839-764
• Seiko 3866-412
• Seiko 5247-960
• Seiko 6170-282
• Seiko 4427-503
• Seiko 6380-390
• Seiko 7144-800
• Seiko 3835-706
• Seiko 4436-995
• Seiko 6346-319