Seiko Cal. 3878 - 440

The Seiko 3878-440 represents an important milestone in Seiko's 1982 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-b3f3c6702529]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1982

Related Models

• Seiko 5641-912
• Seiko 7183-774
• Seiko 3852-647
• Seiko 7168-315
• Seiko 4565-915
• Seiko 0760-986
• Seiko 7076-581
• Seiko 6167-813
• Seiko 6286-513
• Seiko 0726-961
• Seiko 5663-343
• Seiko 6252-763