Seiko Cal. 6291 - 303

The Seiko 6291-303 represents an important milestone in Seiko's 1975 lineup. Powered by the 6291 caliber with 30j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-412a37b54e27]

Also known as: Tuna, Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1975

Related Models

• Seiko 6180-329
• Seiko 3833-736
• Seiko 5288-946
• Seiko 0770-788
• Seiko 4421-721
• Seiko 6330-455
• Seiko 5253-233
• Seiko 6371-977
• Seiko 6160-641
• Seiko 4562-191
• Seiko 4597-136
• Seiko 3885-920