Seiko Cal. 6691 - 361

The 6691-361 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6691 caliber with 21j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-381f9daf64c7]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1994

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