Seiko Cal. 6178 - 401

Released in 1974, the Cal. 6178 with design code 401 was part of Seiko's domestic market collection. It features a Black dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-2018ae68ea40]

Also known as: Bellmatic, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1974

Related Models

• Seiko 6691-109
• Seiko 3830-243
• Seiko 5232-956
• Seiko 5274-438
• Seiko 4531-246
• Seiko 6189-254
• Seiko 6288-709
• Seiko 6153-818
• Seiko 7158-949
• Seiko 3874-115
• Seiko 7130-785
• Seiko 4543-229