Seiko Cal. 7158 - 661

The Seiko 7158-661 represents an important milestone in Seiko's 1968 lineup. Powered by the 7158 caliber with 21j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-07adddfe6ddf]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1968

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