Seiko Cal. 5647 - 709

The Seiko 5647-709 represents an important milestone in Seiko's 1980 lineup. Powered by the 5647 caliber with 34j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-054aa2ed968f]

Also known as: Helmet, Arnie

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1980

Related Models

• Seiko 6250-641
• Seiko 6361-713
• Seiko 6211-821
• Seiko 0785-608
• Seiko 0731-794
• Seiko 0739-118
• Seiko 4513-293
• Seiko 6183-969
• Seiko 4533-797
• Seiko 7012-379
• Seiko 4445-726
• Seiko 7020-875