Seiko Cal. 6387 - 661

The 6387-661 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-d25438a8c907]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1971

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