Seiko Cal. 0770 - 424

This Hand-Winding model from 1986 features a 45mm PVD Black case. It features a Champagne dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-83ac68a3d32d]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1986

Related Models

• Seiko 5687-251
• Seiko 4494-155
• Seiko 6297-774
• Seiko 3895-500
• Seiko 6687-222
• Seiko 3822-992
• Seiko 6624-859
• Seiko 3824-811
• Seiko 6139-652
• Seiko 7172-488
• Seiko 7043-445
• Seiko 4547-109