Seiko Cal. 7057 - 237

The Seiko 7057-237 represents an important milestone in Seiko's 1985 lineup. Powered by the 7057 caliber with 19j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-7601f8d6e45d]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1985

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