Seiko Cal. 4546 - 643

Released in 1970, the Cal. 4546 with design code 643 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-f76f7db2ece4]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1970

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