Seiko Cal. 4520 - 447

The Seiko 4520-447 represents an important milestone in Seiko's 1989 lineup. Powered by the 4520 caliber with 17j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-d8f37e2eab1a]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1989

Related Models

• Seiko 7114-784
• Seiko 0783-112
• Seiko 6256-310
• Seiko 7068-437
• Seiko 6667-309
• Seiko 3810-875
• Seiko 6641-224
• Seiko 6336-515
• Seiko 4436-504
• Seiko 6389-872
• Seiko 7083-920
• Seiko 7124-202