Seiko Cal. 7158 - 421

The 7158-421 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7158 caliber with 30j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-c547117eff07]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1990

Related Models

• Seiko 4494-920
• Seiko 0799-560
• Seiko 7138-885
• Seiko 6140-794
• Seiko 4550-365
• Seiko 6617-601
• Seiko 5660-936
• Seiko 0797-640
• Seiko 0759-247
• Seiko 6655-631
• Seiko 6695-897
• Seiko 6358-746