Seiko Cal. 4520 - 140

The Seiko 4520-140 represents an important milestone in Seiko's 1988 lineup. Powered by the 4520 caliber with 34j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-f182f38b7335]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1988

Related Models

• Seiko 6252-209
• Seiko 6221-642
• Seiko 5668-139
• Seiko 7034-757
• Seiko 6195-992
• Seiko 4532-406
• Seiko 5696-790
• Seiko 4415-539
• Seiko 5291-426
• Seiko 6653-970
• Seiko 6260-158
• Seiko 5279-214