Seiko Cal. 7077 - 157

The 7077-157 is a sought-after Solar piece from Seiko's golden era. Powered by the 7077 caliber with 27j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-2e8016601872]

Also known as: Sumo, Bellmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1971

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