Seiko Cal. 6356 - 257

The Seiko 6356-257 represents an important milestone in Seiko's 1991 lineup. Powered by the 6356 caliber with 23j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-d4678cceda71]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1991

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