Seiko Cal. 7073 - 440

The 7073-440 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7073 caliber with 17j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-5e91bb78e681]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1980

Related Models

• Seiko 5233-971
• Seiko 3811-695
• Seiko 6623-933
• Seiko 7121-801
• Seiko 7045-593
• Seiko 6161-339
• Seiko 6662-381
• Seiko 0791-463
• Seiko 7014-728
• Seiko 4568-450
• Seiko 5678-287
• Seiko 5653-708