Seiko Cal. 6391 - 920

The Seiko 6391-920 represents an important milestone in Seiko's 1975 lineup. It features a Silver dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-f5e2234e2b37]

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1975

Related Models

• Seiko 7083-444
• Seiko 7172-200
• Seiko 4454-955
• Seiko 7010-401
• Seiko 4546-869
• Seiko 6275-500
• Seiko 6698-457
• Seiko 6614-793
• Seiko 4484-766
• Seiko 7191-326
• Seiko 0798-720
• Seiko 4553-170