Seiko Cal. 3878 - 348

The Seiko 3878-348 represents an important milestone in Seiko's 1998 lineup. It features a White dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-b102debc0c42]

Also known as: Tuna, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1998

Related Models

• Seiko 4564-604
• Seiko 5235-482
• Seiko 3824-209
• Seiko 4592-389
• Seiko 5699-303
• Seiko 5257-183
• Seiko 5231-372
• Seiko 0729-169
• Seiko 4543-187
• Seiko 4533-927
• Seiko 6643-768
• Seiko 4490-954