Seiko Cal. 6187 - 770

This Quartz model from 1970 features a 39mm Hardlex-Coated Steel case. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-9db150bba880]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1970

Related Models

• Seiko 5668-284
• Seiko 4445-724
• Seiko 7196-220
• Seiko 4591-765
• Seiko 7160-980
• Seiko 6125-425
• Seiko 6220-757
• Seiko 4566-897
• Seiko 6294-396
• Seiko 4474-978
• Seiko 5630-171
• Seiko 6272-902