Seiko Cal. 6240 - 257

The Seiko 6240-257 represents an important milestone in Seiko's 1973 lineup. Powered by the 6240 caliber with 30j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-16fe6ef37edf]

Also known as: Pogue, Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1973

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