Seiko Cal. 6315 - 340

The 6315-340 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-aa24318da2b4]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1990

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