Seiko Cal. 6378 - 172

Released in 1992, the Cal. 6378 with design code 172 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-fc81e1a92580]

Also known as: Crown, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1992

Related Models

• Seiko 6669-536
• Seiko 6344-303
• Seiko 6399-121
• Seiko 4542-889
• Seiko 4420-616
• Seiko 6347-415
• Seiko 6688-288
• Seiko 5216-250
• Seiko 7093-610
• Seiko 6397-736
• Seiko 5635-138
• Seiko 6634-968