Seiko Cal. 6613 - 956

This Spring Drive model from 1987 features a 39mm Two-Tone case. Powered by the 6613 caliber with 29j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-aa20ccb8c398]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1987

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