Seiko Cal. 6381 - 539

The 6381-539 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6381 caliber with 30j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-54dc0e08b3bf]

Also known as: Turtle, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1997

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