Seiko Cal. 0778 - 636

Released in 1970, the Cal. 0778 with design code 636 was part of Seiko's domestic market collection. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-6ebd11db1bee]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1970

Related Models

• Seiko 5212-667
• Seiko 3818-176
• Seiko 5692-200
• Seiko 4588-387
• Seiko 6340-203
• Seiko 5286-742
• Seiko 7012-749
• Seiko 5279-442
• Seiko 4514-478
• Seiko 6173-618
• Seiko 6660-112
• Seiko 7178-505