Seiko Cal. 6390 - 257

This Spring Drive model from 1967 features a 38mm Stainless Steel case. It features a White dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-d6ed13975a60]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1967

Related Models

• Seiko 7096-689
• Seiko 7098-872
• Seiko 7182-888
• Seiko 5265-371
• Seiko 0771-915
• Seiko 5274-792
• Seiko 6136-339
• Seiko 6261-787
• Seiko 6328-641
• Seiko 0761-343
• Seiko 4417-328
• Seiko 5234-289