Seiko Cal. 5657 - 803

The Seiko 5657-803 represents an important milestone in Seiko's 1995 lineup. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-0fe34465efb7]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1995

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