Seiko Cal. 0740 - 830

The 0740-830 is a sought-after Automatic piece from Seiko's golden era. Powered by the 0740 caliber with 30j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-5f2dfaf7ace7]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1978

Related Models

• Seiko 6323-781
• Seiko 6222-773
• Seiko 6128-113
• Seiko 0772-625
• Seiko 6188-359
• Seiko 6684-918
• Seiko 5283-426
• Seiko 4429-324
• Seiko 0791-901
• Seiko 6677-508
• Seiko 7129-918
• Seiko 7045-877