Seiko Cal. 7057 - 437

The 7057-437 is a sought-after Solar piece from Seiko's golden era. Powered by the 7057 caliber with 17j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-f37446b69fce]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1984

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