Seiko Cal. 6257 - 736

The Seiko 6257-736 represents an important milestone in Seiko's 1969 lineup. Powered by the 6257 caliber with 22j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-daa9552df580]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1969

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