Seiko Cal. 6685 - 821

The Seiko 6685-821 represents an important milestone in Seiko's 1978 lineup. Powered by the 6685 caliber with 32j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-584853b49e06]

Also known as: Sumo, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1978

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