Seiko Cal. 6311 - 288

The Seiko 6311-288 represents an important milestone in Seiko's 1970 lineup. It features a Green dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-161480a6e042]

Also known as: Helmet, Silverwave

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1970

Related Models

• Seiko 6113-949
• Seiko 7198-977
• Seiko 0717-990
• Seiko 7137-889
• Seiko 4578-761
• Seiko 0713-442
• Seiko 7121-251
• Seiko 4512-730
• Seiko 6394-130
• Seiko 7179-838
• Seiko 7173-441
• Seiko 6363-644