Seiko Cal. 7057 - 284

The Seiko 7057-284 represents an important milestone in Seiko's 1967 lineup. Powered by the 7057 caliber with 30j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-917e88f5378d]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1967

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