Seiko Cal. 6657 - 694

The Seiko 6657-694 represents an important milestone in Seiko's 1986 lineup. It features a Silver dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-04019dec90c9]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1986

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