Seiko Cal. 5646 - 109

The Seiko 5646-109 represents an important milestone in Seiko's 1966 lineup. It features a Silver dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-9ac6a304f6d7]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1966

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