Seiko Cal. 6659 - 538

Released in 1977, the Cal. 6659 with design code 538 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-8db270103aa8]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1977

Related Models

• Seiko 7031-985
• Seiko 7160-420
• Seiko 5620-127
• Seiko 6647-950
• Seiko 7173-423
• Seiko 6345-123
• Seiko 6349-849
• Seiko 7128-253
• Seiko 0760-803
• Seiko 4470-274
• Seiko 3882-401
• Seiko 4527-741