Seiko Cal. 6378 - 434

Released in 1968, the Cal. 6378 with design code 434 was part of Seiko's domestic market collection. It features a White dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-61f1d773444e]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1968

Related Models

• Seiko 5287-972
• Seiko 3884-549
• Seiko 6348-766
• Seiko 4495-853
• Seiko 6348-319
• Seiko 6295-828
• Seiko 7070-868
• Seiko 6152-400
• Seiko 0733-693
• Seiko 3876-694
• Seiko 0759-355
• Seiko 5295-850