Seiko Cal. 5613 - 664

This Solar model from 1977 features a 44mm Titanium case. It features a Black dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-ee2f6a2c66f7]

Also known as: UFO, Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1977

Related Models

• Seiko 7143-102
• Seiko 3837-573
• Seiko 0710-435
• Seiko 0788-744
• Seiko 5650-938
• Seiko 6328-703
• Seiko 6131-735
• Seiko 6396-484
• Seiko 4568-764
• Seiko 6155-864
• Seiko 5611-104
• Seiko 6381-759