Seiko Cal. 6311 - 639

Released in 1991, the Cal. 6311 with design code 639 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-ce98ac813bdd]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1991

Related Models

• Seiko 5695-596
• Seiko 5699-393
• Seiko 5616-121
• Seiko 3872-820
• Seiko 4543-505
• Seiko 3861-364
• Seiko 5684-204
• Seiko 6179-108
• Seiko 4557-650
• Seiko 5628-551
• Seiko 5261-911
• Seiko 0790-186