Seiko Cal. 6163 - 521

The Seiko 6163-521 represents an important milestone in Seiko's 1969 lineup. With its 21mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-ee43fd086019]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1969

Related Models

• Seiko 3868-525
• Seiko 6164-467
• Seiko 5682-165
• Seiko 7043-678
• Seiko 3810-135
• Seiko 3846-753
• Seiko 5275-539
• Seiko 7022-195
• Seiko 6365-454
• Seiko 5628-400
• Seiko 7147-473
• Seiko 3883-123