Seiko Cal. 6121 - 555

This Spring Drive model from 1975 features a 36mm Hardlex-Coated Steel case. With its 21mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-be210b52907b]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1975

Related Models

• Seiko 5630-145
• Seiko 0774-113
• Seiko 4592-748
• Seiko 6654-524
• Seiko 6617-869
• Seiko 7057-556
• Seiko 5667-572
• Seiko 3893-543
• Seiko 4555-200
• Seiko 5675-440
• Seiko 6661-297
• Seiko 6225-818