Seiko Cal. 3861 - 175

The Seiko 3861-175 represents an important milestone in Seiko's 1995 lineup. Powered by the 3861 caliber with 26j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-ca350ed7705f]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1995

Related Models

• Seiko 3880-726
• Seiko 7172-282
• Seiko 7040-522
• Seiko 6684-865
• Seiko 6628-198
• Seiko 7148-812
• Seiko 5639-654
• Seiko 6697-753
• Seiko 7023-230
• Seiko 6170-231
• Seiko 4451-842
• Seiko 4573-123