Seiko Cal. 5688 - 339

This Quartz model from 1988 features a 40mm PVD Black case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-09142db1677a]

Also known as: UFO, Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1988

Related Models

• Seiko 7139-787
• Seiko 6346-408
• Seiko 6215-718
• Seiko 5215-378
• Seiko 6143-795
• Seiko 6214-339
• Seiko 6237-385
• Seiko 7091-866
• Seiko 4494-246
• Seiko 0753-322
• Seiko 7184-958
• Seiko 0760-965