Seiko Cal. 7057 - 946

The Seiko 7057-946 represents an important milestone in Seiko's 1978 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-90ce8be02dc1]

Also known as: Crown, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1978

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