Seiko Cal. 5646 - 135

The 5646-135 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-4daae9142d66]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1973

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