Seiko Cal. 6658 - 229

The Seiko 6658-229 represents an important milestone in Seiko's 1985 lineup. Powered by the 6658 caliber with 35j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-372ba0edaba7]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1985

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