Seiko Cal. 6311 - 597

This Spring Drive model from 1984 features a 42mm Titanium case. It features a Green dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-7e99583da47b]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1984

Related Models

• Seiko 7065-264
• Seiko 6691-399
• Seiko 6140-515
• Seiko 6171-480
• Seiko 6258-909
• Seiko 6221-868
• Seiko 6651-232
• Seiko 6382-285
• Seiko 7084-802
• Seiko 6384-585
• Seiko 4553-829
• Seiko 0710-316