Seiko Cal. 7155 - 646

The Seiko 7155-646 represents an important milestone in Seiko's 1997 lineup. Powered by the 7155 caliber with 32j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-579ec384ae83]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1997

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