Seiko Cal. 7128 - 421

The 7128-421 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7128 caliber with 29j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-3f6b9a4a05cd]

Also known as: Sea Horse, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1967

Related Models

• Seiko 7154-966
• Seiko 7028-163
• Seiko 6277-157
• Seiko 3899-418
• Seiko 7118-284
• Seiko 5632-207
• Seiko 6182-106
• Seiko 3825-323
• Seiko 6340-683
• Seiko 6341-956
• Seiko 6277-920
• Seiko 4547-948