Seiko Cal. 6657 - 105

The Seiko 6657-105 represents an important milestone in Seiko's 1984 lineup. It features a Silver dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-0c0da8ba4788]

Also known as: Tuna, Silverwave

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1984

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