Seiko Cal. 6166 - 238

This Spring Drive model from 1969 features a 37mm Stainless Steel case. With its 21mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-a56dc71fc25b]

Also known as: Sumo, Panda

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1969

Related Models

• Seiko 6272-160
• Seiko 6259-388
• Seiko 6163-487
• Seiko 6394-726
• Seiko 6688-248
• Seiko 6698-847
• Seiko 6141-605
• Seiko 5264-378
• Seiko 7128-705
• Seiko 5679-980
• Seiko 6642-538
• Seiko 5275-203