Seiko Cal. 7020 - 531

The Seiko 7020-531 represents an important milestone in Seiko's 1973 lineup. Powered by the 7020 caliber with 17j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-5eebbeeaaae4]

Also known as: World Timer, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1973

Related Models

• Seiko 4539-582
• Seiko 6624-778
• Seiko 7011-489
• Seiko 7163-952
• Seiko 6691-586
• Seiko 0713-958
• Seiko 4412-877
• Seiko 7073-666
• Seiko 0775-411
• Seiko 0730-863
• Seiko 4597-580
• Seiko 7036-239