Seiko Cal. 5221 - 187

The Seiko 5221-187 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-7db59ce95c9b]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1968

Related Models

• Seiko 7057-174
• Seiko 4556-856
• Seiko 5699-594
• Seiko 5614-349
• Seiko 5219-676
• Seiko 6215-631
• Seiko 6168-702
• Seiko 0763-610
• Seiko 3895-972
• Seiko 5240-534
• Seiko 5250-652
• Seiko 4461-109