Seiko Cal. 6311 - 740

The Seiko 6311-740 represents an important milestone in Seiko's 1970 lineup. It features a Green dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-82b83212966d]

Also known as: Crown, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1970

Related Models

• Seiko 5652-211
• Seiko 6352-834
• Seiko 4547-632
• Seiko 6254-555
• Seiko 6619-489
• Seiko 3825-471
• Seiko 6356-578
• Seiko 6359-961
• Seiko 0715-126
• Seiko 7072-399
• Seiko 6149-819
• Seiko 5674-512