Seiko Cal. 6157 - 643

This Spring Drive model from 1986 features a 42mm Gold-Plated case. With its 22mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-0da9ca4d0a1f]

Also known as: Sumo, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1986

Related Models

• Seiko 6621-158
• Seiko 5293-639
• Seiko 6240-891
• Seiko 7154-131
• Seiko 3875-220
• Seiko 6125-771
• Seiko 5653-825
• Seiko 6137-330
• Seiko 7079-297
• Seiko 4513-719
• Seiko 4421-747
• Seiko 6681-731