Seiko Cal. 5646 - 770

The Seiko 5646-770 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-5bb69445aeb0]

Also known as: Monster, Shogun

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1975

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