Seiko Cal. 4543 - 635

The 4543-635 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4543 caliber with 28j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-09f75d07a160]

Also known as: Sumo, Bellmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1966

Related Models

• Seiko 5683-677
• Seiko 5695-685
• Seiko 5257-819
• Seiko 6676-661
• Seiko 6365-263
• Seiko 3833-901
• Seiko 7023-864
• Seiko 0724-448
• Seiko 5280-514
• Seiko 6236-238
• Seiko 5289-823
• Seiko 6614-965