Seiko Cal. 5631 - 313

This Quartz model from 1986 features a 38mm Titanium case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-064bef0fc93b]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1986

Related Models

• Seiko 6617-596
• Seiko 5669-617
• Seiko 5297-280
• Seiko 7068-825
• Seiko 5246-834
• Seiko 4445-984
• Seiko 6353-392
• Seiko 6692-539
• Seiko 5688-190
• Seiko 6635-104
• Seiko 6236-320
• Seiko 6286-283