Seiko Cal. 6645 - 602

The Seiko 6645-602 represents an important milestone in Seiko's 1972 lineup. It features a Black dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-d303308d0152]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1972

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