Seiko Cal. 6310 - 660

The 6310-660 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6310 caliber with 19j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-7bfca986a3a5]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1985

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