Seiko Cal. 7057 - 315

The Seiko 7057-315 represents an important milestone in Seiko's 1987 lineup. Powered by the 7057 caliber with 24j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-4311d802a5ab]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1987

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