Seiko Cal. 6613 - 131

The Seiko 6613-131 represents an important milestone in Seiko's 1978 lineup. Powered by the 6613 caliber with 21j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-828d1f0c8b61]

Also known as: Panda, Flighty

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1978

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