Seiko Cal. 3861 - 109

The 3861-109 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3861 caliber with 32j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-3351c7e7211d]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Cream

Jewels

32j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1986

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