Seiko Cal. 6315 - 617

This Automatic model from 1986 features a 40mm Titanium case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-17b257bdbdcc]

Also known as: Tuna, Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1986

Related Models

• Seiko 5261-335
• Seiko 5277-844
• Seiko 6245-843
• Seiko 7031-206
• Seiko 4569-904
• Seiko 6263-402
• Seiko 0784-859
• Seiko 6148-888
• Seiko 3869-811
• Seiko 6136-708
• Seiko 5259-227
• Seiko 3899-335