Seiko Cal. 5646 - 245

Released in 1965, the Cal. 5646 with design code 245 was part of Seiko's domestic market collection. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-f834b4fc75bc]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1965

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