Seiko Cal. 0720 - 538

The 0720-538 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0720 caliber with 18j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-388609e50e21]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1965

Related Models

• Seiko 7028-876
• Seiko 6266-556
• Seiko 5272-751
• Seiko 5663-600
• Seiko 5647-456
• Seiko 0783-671
• Seiko 3827-199
• Seiko 0747-828
• Seiko 5287-528
• Seiko 6368-131
• Seiko 4451-990
• Seiko 6313-155