Seiko Cal. 6178 - 841

This Hand-Winding model from 1971 features a 42mm Titanium case. Powered by the 6178 caliber with 20j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-335123b4322a]

Also known as: Sumo, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1971

Related Models

• Seiko 6649-256
• Seiko 5223-875
• Seiko 6334-138
• Seiko 3837-126
• Seiko 7086-180
• Seiko 5641-118
• Seiko 7122-496
• Seiko 7065-468
• Seiko 5676-493
• Seiko 6160-413
• Seiko 6692-677
• Seiko 6657-644