Seiko Cal. 6611 - 531

The Seiko 6611-531 represents an important milestone in Seiko's 1986 lineup. Powered by the 6611 caliber with 36j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-0adefa1d438d]

Also known as: Sumo, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1986

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