Seiko Cal. 6625 - 639

Released in 1978, the Cal. 6625 with design code 639 was part of Seiko's domestic market collection. With its 19mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-aa6625aef1cd]

Also known as: Sumo, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1978

Related Models

• Seiko 4411-760
• Seiko 5212-836
• Seiko 0794-661
• Seiko 7067-715
• Seiko 7056-660
• Seiko 7145-938
• Seiko 3874-937
• Seiko 6648-165
• Seiko 6630-615
• Seiko 7087-204
• Seiko 5283-972
• Seiko 0764-279