Seiko Cal. 7187 - 422

The 7187-422 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-9cabdeb61055]

Also known as: Sumo, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1978

Related Models

• Seiko 3828-613
• Seiko 7061-879
• Seiko 5617-227
• Seiko 6364-298
• Seiko 6377-235
• Seiko 3857-550
• Seiko 6294-834
• Seiko 6230-599
• Seiko 4463-352
• Seiko 6143-154
• Seiko 6146-257
• Seiko 6210-987