Seiko Cal. 6390 - 401

The 6390-401 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-732af5d5228b]

Also known as: World Timer, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1979

Related Models

• Seiko 7020-682
• Seiko 7159-763
• Seiko 0778-875
• Seiko 3893-454
• Seiko 7095-208
• Seiko 6269-555
• Seiko 6634-675
• Seiko 5641-989
• Seiko 3891-501
• Seiko 6150-433
• Seiko 7072-672
• Seiko 6652-767