Seiko Cal. 7157 - 135

The 7157-135 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7157 caliber with 23j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-d209433c0db5]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1980

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