Seiko Cal. 6657 - 184

The 6657-184 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-c79e6e1c0d03]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1978

Related Models

• Seiko 5259-885
• Seiko 6681-579
• Seiko 3861-769
• Seiko 6371-969
• Seiko 4428-301
• Seiko 3888-531
• Seiko 6277-994
• Seiko 6352-669
• Seiko 6218-603
• Seiko 0738-655
• Seiko 4482-198
• Seiko 4460-109