Seiko Cal. 7154 - 720

The Seiko 7154-720 represents an important milestone in Seiko's 1997 lineup. Powered by the 7154 caliber with 28j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-0998eecf139b]

Also known as: Turtle, Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1997

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