Seiko Cal. 6311 - 404

This Quartz model from 1977 features a 40mm Two-Tone case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-c8f323ac4495]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1977

Related Models

• Seiko 7077-631
• Seiko 6353-555
• Seiko 6156-589
• Seiko 5683-416
• Seiko 0715-200
• Seiko 6634-449
• Seiko 4538-257
• Seiko 6114-325
• Seiko 6121-641
• Seiko 5274-802
• Seiko 3851-586
• Seiko 5623-179