Seiko Cal. 7031 - 393

This Spring Drive model from 1988 features a 39mm Two-Tone case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-55fbea53fa8c]

Also known as: Samurai, Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1988

Related Models

• Seiko 5236-721
• Seiko 6287-901
• Seiko 6129-176
• Seiko 4527-752
• Seiko 4563-262
• Seiko 6223-152
• Seiko 7185-192
• Seiko 6158-963
• Seiko 6673-719
• Seiko 6312-237
• Seiko 0791-858
• Seiko 6617-268