Seiko Cal. 7139 - 958

This Spring Drive model from 1989 features a 39mm Two-Tone case. Powered by the 7139 caliber with 26j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-f8b8bb036258]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1989

Related Models

• Seiko 6315-388
• Seiko 0794-552
• Seiko 4471-700
• Seiko 6141-990
• Seiko 6342-143
• Seiko 5218-472
• Seiko 6375-669
• Seiko 4567-853
• Seiko 6143-598
• Seiko 4510-975
• Seiko 6314-633
• Seiko 7174-341