Seiko Cal. 3815 - 678

Released in 1987, the Cal. 3815 with design code 678 was part of Seiko's domestic market collection. With its 19mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-7b8bb1ebc53b]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1987

Related Models

• Seiko 6287-953
• Seiko 4575-840
• Seiko 6655-546
• Seiko 3837-533
• Seiko 7085-770
• Seiko 7094-849
• Seiko 6631-459
• Seiko 7047-430
• Seiko 6232-452
• Seiko 4572-237
• Seiko 7054-302
• Seiko 6689-996