Seiko Cal. 5257 - 677

The Seiko 5257-677 represents an important milestone in Seiko's 1969 lineup. Powered by the 5257 caliber with 23j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-857e65916591]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1969

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