Seiko Cal. 6156 - 621

The Seiko 6156-621 represents an important milestone in Seiko's 1971 lineup. With its 21mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-87090a70b525]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1971

Related Models

• Seiko 7135-234
• Seiko 6183-278
• Seiko 7072-819
• Seiko 4496-645
• Seiko 4445-403
• Seiko 5656-624
• Seiko 3892-788
• Seiko 6223-301
• Seiko 6653-833
• Seiko 7188-949
• Seiko 6273-780
• Seiko 4421-702