Seiko Cal. 5261 - 639

This Hand-Winding model from 1966 features a 44mm Two-Tone case. It features a Champagne dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-4685e443512b]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1966

Related Models

• Seiko 5698-645
• Seiko 4584-838
• Seiko 4426-825
• Seiko 4485-137
• Seiko 7176-375
• Seiko 6126-319
• Seiko 0755-216
• Seiko 5258-460
• Seiko 4557-808
• Seiko 4578-471
• Seiko 5247-742
• Seiko 6379-115