Seiko Cal. 5646 - 607

The Seiko 5646-607 represents an important milestone in Seiko's 1977 lineup. It features a Green dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-24b85ab403ba]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1977

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