Seiko Cal. 7136 - 852

Released in 1971, the Cal. 7136 with design code 852 was part of Seiko's domestic market collection. Powered by the 7136 caliber with 17j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-d99fabc1c65f]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1971

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