Seiko Cal. 7039 - 991

The Seiko 7039-991 represents an important milestone in Seiko's 1978 lineup. Powered by the 7039 caliber with 27j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-cc49511f59b9]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1978

Related Models

• Seiko 5676-284
• Seiko 6324-131
• Seiko 7017-122
• Seiko 3813-408
• Seiko 0763-555
• Seiko 7114-179
• Seiko 4586-467
• Seiko 6345-109
• Seiko 6150-489
• Seiko 6218-233
• Seiko 5658-727
• Seiko 4512-806